On Tue, Jun 4, 2013 at 8:45 PM, John Lato <[email protected]> wrote: > On Wed, Jun 5, 2013 at 10:15 AM, Ivan Lazar Miljenovic > <[email protected]> wrote: >> >> On 5 June 2013 12:02, silly8888 <[email protected]> wrote: >> > I was wondering today, why hasn't hsc2hs been merged with ghc so that >> > it would be possible to add a >> > >> > {-# LANGUAGE ForeignFunctionInterface #-} >> > >> > at the top of a source file and then load it with ghci or compile it, >> > without the intermediate step of calling hsc2hs? This would be exactly >> > like the CPP extension. I don't have to call cpp manually. All I have >> > to do is to add {-# LANGUAGE CPP #-} and then ghc will take care of >> > the rest. This would also mean that there would be no need to have a >> > separate file extension. Surely I must not be the first person to have >> > that thought, so there must be a good reason why this hasn't happen >> > yet, but what is it? >> >> Isn't this done automatically when you have files with the .hsc extension? > > > cabal handles this transparently, but not ghc. It's frustrating when you > want to develop a project with ghci. > > I don't think it's a good idea to merge hsc2hs syntax into Haskell files. > In particular, it's often useful to inspect the intermediate .hs file > produced by hsc2hs during development or debugging. Also it would > complicate ghc's parser, etc... > > My preferred solution would be to have ghc/ghci automatically run hsc2hs > (support c2hs also?) when necessary. But so long as it's handled > automatically, I wouldn't be particularly bothered by the implementation.
How about having a `ghci` command for cabal? Or does the automatic requirement really need to be part of ghc to work the way you want? (BTW, cabal-dev does have a `ghci` command, but I haven't tested to see if it does the hsc -> hs conversion.) Jason _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
